versioner: replace availability attributes with annotate.

Major refactor to use __attribute__((annotate)) to be able to keep
track of the semantic differences between __INTRODUCED_IN(x) and
__INTRODUCED_IN_X86(x), for use in the upcoming preprocessor.

Bug: http://b/30170081
Change-Id: I6496a8c40ba7f4553de9a2be0bbddcf37c813937
diff --git a/tools/versioner/tests/version_mismatch/expected_fail b/tools/versioner/tests/version_mismatch/expected_fail
index 7f0709c..f83f71c 100644
--- a/tools/versioner/tests/version_mismatch/expected_fail
+++ b/tools/versioner/tests/version_mismatch/expected_fail
@@ -1,2 +1,8 @@
-foo: availability mismatch between arm-9 and arm-12: [introduced = 9] before, [introduced = 10] after
+versioner: inconsistent availability for symbol 'foo'
+versioner: failed to calculate symbol availability
+  foo: invalid
+    extern declaration @ headers/foo.h:2:1
+      introduced = 9
+    extern declaration @ headers/foo.h:4:1
+      introduced = 10
 versioner: sanity check failed